Biological control of twospotted spider mite, Tetranychus urticae, with predatory mite, Neoseiulus californicus, in strawberries

被引:63
作者
Fraulo, Aimee B. [1 ]
Liburd, Oscar E. [1 ]
机构
[1] Univ Florida, Gainesville, FL 32611 USA
关键词
prey density; predatory mites; control costs; timed releases; Southeastern United States;
D O I
10.1007/s10493-007-9109-7
中图分类号
Q96 [昆虫学];
学科分类号
摘要
Greenhouse and field experiments were conducted from 2005 to 2007 to determine the effectiveness of different release times with the predatory mite, Neoseiulus californicus (McGregor), for control of the twospotted spider mite (TSSM), Tetranychus urticae Koch, in strawberries (Fragaria x ananassa Duchesne). The effect of N. californicus releases over time and on development of TSSM populations during a growing season were evaluated. Our hypothesis was that repeated applications of N. californicus, which is currently recommended by biological control companies, might be unnecessary to attain season-long control of TSSM. In greenhouse trials, three treatments consisting of releases of N. californicus at five-day intervals: day 0, day 5, and day 10, and an untreated control were evaluated. The treatment releases significantly reduced TSSM below the control within five days of each release. Neoseiulus californicus significantly reduced TSSM in treatments with high densities (leaflets with >= 40 TSSM) below that of treatments with lower densities (leaflets with <= 10 TSSM) demonstrating that if released at a predator: prey ratio of 1:10, timing of release does not alter the effectiveness of N. californicus in controlling TSSM. However, we found that if the ratio of predator: prey remains adequate, N. californicus is a more efficient predator at high TSSM densities. Field studies included three treatments consisting of releases of N. californicus at one-month intervals. All treatments significantly reduced TSSM compared with the control plots (no releases). Releases applied early in the season sustained TSSM significantly below those in the control plots for the whole season. Our results indicate that one release of N. californicus is able to sustained control of TSSM in strawberry throughout a growing season if released when TSSM populations are low early in the season in the southeastern United States.
引用
收藏
页码:109 / 119
页数:11
相关论文
共 30 条
[1]   Compatibility of three miticides with the predatory mites Neoseiulus californicus McGregor and Phytoseiulus persimilis Athias-Henriot (Acari: Phytoseiidae) [J].
Cloyd, RA ;
Galle, CL ;
Keith, SR .
HORTSCIENCE, 2006, 41 (03) :707-710
[2]   Heat units, release rate, prey density, and plant age effects on dispersal by Neoseiulus fallacis (Acari: Phytoseiidae) after inoculation into strawberry [J].
Croft, BA ;
Coop, LB .
JOURNAL OF ECONOMIC ENTOMOLOGY, 1998, 91 (01) :94-100
[3]   Comparative life histories and predation types:: Are Neoseiulus californicus and N-fallacis (Acari: Phytoseiidae) similar type II selective predators of spider mites? [J].
Croft, BA ;
Monetti, LN ;
Pratt, PD .
ENVIRONMENTAL ENTOMOLOGY, 1998, 27 (03) :531-538
[4]   Review: Natural enemies and biocontrol of pests of strawberry in northern and central Europe [J].
Cross, JV ;
Easterbrook, MA ;
Crook, AM ;
Crook, D ;
Fitz Gerald, JD ;
Innocenzi, PJ ;
Jay, CN ;
Solomon, MG .
BIOCONTROL SCIENCE AND TECHNOLOGY, 2001, 11 (02) :165-216
[5]   HOW PLANTS OBTAIN PREDATORY MITES AS BODYGUARDS [J].
DICKE, M ;
SABELIS, MW .
NETHERLANDS JOURNAL OF ZOOLOGY, 1988, 38 (2-4) :148-165
[6]   Biological control of strawberry tarsonemid mite Phytonemus pallidus and two-spotted spider mite Tetranychus urticae on strawberry in the UK using species of Neoseiulus (Amblyseius) (Acari: Phytoseiidae) [J].
Easterbrook, MA ;
Fitz Gerald, JD ;
Solomon, MG .
EXPERIMENTAL AND APPLIED ACAROLOGY, 2001, 25 (01) :25-36
[7]   THE POSSIBILITIES FOR CONTROL OF 2-SPOTTED SPIDER-MITE TETRANYCHUS-URTICAE ON FIELD-GROWN STRAWBERRIES IN THE UK BY PREDATORY MITES [J].
EASTERBROOK, MA .
BIOCONTROL SCIENCE AND TECHNOLOGY, 1992, 2 (03) :235-245
[8]   Life-history of predatory mites Neoseiulus californicus and Phytoseiulus persimilis (Acari: Phytoseiidae) on four spider mite species as prey, with special reference to Tetranychus evansi (Acari: Tetranychidae) [J].
Escudero, LA ;
Ferragut, F .
BIOLOGICAL CONTROL, 2005, 32 (03) :378-384
[9]   Neoseiulus californicus (Acari:Phytoseiidae) as a potential control agent of Tetranychus urticae (Acari:Tetranychidae):: effect of pest/predator ratio on pest abundance on strawberry [J].
Greco, NM ;
Sánchez, NE ;
Liljesthröm, GG .
EXPERIMENTAL AND APPLIED ACAROLOGY, 2005, 37 (1-2) :57-66
[10]   Presence-absence sampling for Tetranychus urticae and its predator Neoseiulus californicus (Acari: Tetranychidae; Phytoseiidae) on strawberries [J].
Greco, NM ;
Tetzlaff, GT ;
Liljesthröm, GG .
INTERNATIONAL JOURNAL OF PEST MANAGEMENT, 2004, 50 (01) :23-27